Computer restarts randomly while playing games

[Spoony0313]

So, I've built my computer and it worked well until now. I made it on 26th September and now I have issues with playing games and it restart randomly. Today is the first time I've seen the issue. At first I thought it was graphics card drivers issue, so I updated my drivers using GeForce Experience but the problem is still there.
I don't think it is a problem with the power supply not delivering enough power. The 750W should be enough for a single 770.

CPU: Intel Core i7-4790K 4.0GHz Quad-Core Processor
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler
Motherboard: Asus MAXIMUS VII HERO ATX LGA1150 Motherboard
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1866 Memory
Storage: Kingston SSDNow V300 Series 120GB 2.5" Solid State Drive
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive
Video Card: Gigabyte GeForce GTX 770 2GB WINDFORCE
Case: NZXT Phantom 530 (White) ATX Full Tower Case
Power Supply: EVGA 750W 80+ Gold Certified Fully-Modular ATX Power Supply
Optical Drive: LG GH24NSB0 DVD/CD Writer
Wireless Network Adapter: TP-Link TL-WN781ND 802.11b/g/n PCI-Express x1 Wi-Fi Adapter

Another problem may be the temperature. Recently in Australia, its been hot for the last few days. Could that be a problem causing the restart?
The case comes with two fans. One intake and One exhaust.
I've looked at the temperature in the BIOS, but it doesn't seem too high. The only high one would be VRM having around 50 celsius.
I was playing Team Fortress 2 when the computer restart. The graphics card should be able to handle TF2 without getting too hot. I've reopened the game a couple of times, but after some time, the computer restarted.

Someone able to help solve the problem?

 

[snowctrl]

The problem is likely that your GPU is getting too hot when you are gaming - games will be working it very hard, hence the crashes while gaming. Solution is to increase case cooling, as you suspected.

Additional in-take and exhaust fans, with the goal of drawing in more air than exhausting so as to make sure there is positive air pressure in the case, which helps the exhaust fans do their work.

In-take at front, bottom, and possibly sides, exhaust at back and top, is typical (hot air rises)

 

[Spoony0313]

The problem is likely that your GPU is getting too hot when you are gaming - games will be working it very hard, hence the crashes while gaming. Solution is to increase case cooling, as you suspected.

Additional in-take and exhaust fans, with the goal of drawing in more air than exhausting so as to make sure there is positive air pressure in the case, which helps the exhaust fans do their work.

In-take at front, bottom, and possibly sides, exhaust at back and top, is typical (hot air rises)

When I put my hands in the exhaust, it doesn't feel that hot. I've felt warmer air when I play games like Planetside 2. Could that still be problem with graphics card overheating?

Asus motherboard can control the fan speed on its own. When it restart, the fans weren't on max speed. Does the motherboard control the fan speed based on the temperature of graphics card?

When I turned all my fans to full the problem didn't come up as often.

Are there chances that there could be a broken capacitor due to the heat?

 

[snowctrl]

Well, your questions are all a bit speculative, but they all concern heat, and increasing the airflow through your case will reduce temperatures at all points - CPU, VRMs, GPU etc

In other words, it's a you-can't-lose fix.

And the fact that when you maxed your fan speeds you get the problems less often, and that you first had problems on hot days also strongly suggest too much heat to be the cause of your problems.

I would suggest you go ahead and get some more fans fitted - they aren't particularly expensive, and if the problems persist (which I strongly doubt they will) you will at least have ruled out heat as the source of the problem.

And about the capacitor - computers components tend to be very well designed to protect themselves, so I would be very surprised if heat alone had caused any such damage.

Don't worry - buy some fans!!

 

[Spoony0313]

Well, your questions are all a bit speculative, but they all concern heat, and increasing the airflow through your case will reduce temperatures at all points - CPU, VRMs, GPU etc

In other words, it's a you-can't-lose fix.

And the fact that when you maxed your fan speeds you get the problems less often, and that you first had problems on hot days also strongly suggest too much heat to be the cause of your problems.

I would suggest you go ahead and get some more fans fitted - they aren't particularly expensive, and if the problems persist (which I strongly doubt they will) you will at least have ruled out heat as the source of the problem.

And about the capacitor - computers components tend to be very well designed to protect themselves, so I would be very surprised if heat alone had caused any such damage.

Don't worry - buy some fans!!

So, immediately after restart, I go into BIOS to look at the temperature and see that the VRM is only at around 50. If I monitor my temperature while playing games, using AI Suite 3, it doesn't seem to go a lot above 50 Celsius. The maximum VRM temperature while playing Planetside 2 is around 51 to 53. I believe that the VRM can get hotter than 50?
Today, when I was playing in the morning, which is a lot cooler, it still restarts randomly. It's around 20 Celsius in my room, so it shouldn't be too hot.

By the way, I did not overclock this graphics card. While using AI Suite 3 to monitor my VRM temperature, it seems to be idling at around 44 Celsius while my room is only 20.

Maybe a bit more than just the heat?

Edit: So, I used GPU-Z to monitor my GPU. It showed that seconds before the restart, the temperature was 50. The max temperature is 60 during the game session.

I have removed my graphics card and used my Intel graphics, I have not encountered any unexpected restarts yet. However, I can't play games that make this computer restart. e.g TF2 or Planetside 2

 

[snowctrl]

If you overclocked your GPU, first thing is to reset it to factory settings and see if that fixes it

 

[Spoony0313]

If you overclocked your GPU, first thing is to reset it to factory settings and see if that fixes it

Is it normal to overheat if it isn't overclocked? Mine isn''t overclocked.

 

[snowctrl]

If you overclocked your GPU, first thing is to reset it to factory settings and see if that fixes it

Is it normal to overheat if it isn't overclocked? Mine isn''t overclocked.

Sorry, misread your post that you HAD overclocked it.

However, it isn't that uncommon for a GPU or other components to overheat if they're not overclocked, if there is insufficient airflow through the case etc.

 

[Spoony0313]

Update: I've reinserted the graphics card (Not sure if that did anything) and bought two new fans.
I haven't encountered any restart yet, even gaming on hot days.

 

[snowctrl]

Update: I've reinserted the graphics card (Not sure if that did anything) and bought two new fans.
I haven't encountered any restart yet, even gaming on hot days.

Good stuff, well done